小说可以是书面或口头的。

Fiction may be either written or oral.

youdao

广告是以书面或口头的形式，打算出售东西，并想赚取收入。

Advertising is either in written or oral form, which intends to sell something and want to earn revenue.

youdao

提交过软件缺陷报告的任何人都知道实际显示问题的屏幕快照要比书面或口头的描述可信得多。

Anyone who has ever filed a defect report against a piece of software knows that a screen shot that actually shows the problem establishes more credibility than a written or verbal description.

youdao

Suppose they have a written contract, or even an unwritten contract, what enforces the contract for colluding firms or crooks in jail?

假如他们签了一份书面协议,或干脆口头的,他们怎么强制履行呢

耶鲁公开课 - 博弈论课程节选